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Significance and Use
5.1 Fuel cells such as proton exchange membrane fuel cells require high purity hydrogen for maximum material performance and lifetime. Collection and measurement of particulate matter 0.2 µm or larger is necessary for assuring a feed gas of sufficient quality to satisfy fuel cell system needs. In addition, internal combustion engines using high pressure hydrogen fuel also require low particulate levels. Specifically, particulate matter has been implicated in the premature failure of pneumatic control components, such as valves within vehicles. This sampling procedure is used to collect and measure samples containing particles 0.2 µm or larger in size.
5.2 Although not intended for application to gases other than hydrogen and related fuel cell supply gases, the techniques within this sampling procedure can be applied to other high pressure gaseous samples requiring particulate collection and measurement.
1.1 This test method is primarily for sampling particulates in hydrogen fuel used in hydrogen fuel cell vehicles or gaseous hydrogen powered internal combustion vehicle engines up to pressures of 70 MPa (700 bars) using an in-stream filter. This test method describes sampling apparatus design, operating procedures, and quality control procedures required to obtain the stated levels of precision and accuracy.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D7651 Test Method for Gravimetric Measurement of Particulate Concentration of Hydrogen Fuel
SAE StandardsSAEJ2600 Compressed Hydrogen Surface Vehicle Refueling Connection Devices SAEJ2719 Hydrogen Fuel Quality for Fuel Cell Vehicles
ISO StandardISO/CD14687–2 Hydrogen fuel -- Product Specification -- Part 2: Proton exchange membrane (PEM) fuel cell applications for road vehicles.
EU Standard97/23/EC Pressure Equipment Directive of the EU set out the standards for the design and fabrication of pressure equipment
API StandardAPI598 Valve Inspection and Testing
ICS Number Code 27.075 (Hydrogen technologies)
UNSPSC Code 15111500(Gaseous fuels)